Fix JWT fixture to adjust expiration.

tests/components/elmax/conftest.py

@@ -1,6 +1,7 @@
 """Configuration for Elmax tests."""
 
 from collections.abc import Generator
+from datetime import datetime, timedelta
 import json
 from unittest.mock import AsyncMock, patch
 
@@ -11,6 +12,7 @@
     ENDPOINT_LOGIN,
 )
 from httpx import Response
+import jwt
 import pytest
 import respx
 
@@ -64,9 +66,20 @@ def httpx_mock_direct_fixture() -> Generator[respx.MockRouter]:
     ) as respx_mock:
         # Mock Login POST.
         login_route = respx_mock.post(f"/api/v2/{ENDPOINT_LOGIN}", name="login")
-        login_route.return_value = Response(
-            200, json=json.loads(load_fixture("direct/login.json", "elmax"))
+
+        login_json = json.loads(load_fixture("direct/login.json", "elmax"))
+        decoded_jwt = jwt.decode_complete(
+            login_json["token"].split(" ")[1],
+            algorithms="HS256",
+            options={"verify_signature": False},
+        )
+        expiration = datetime.now() + timedelta(hours=1)
+        decoded_jwt["payload"]["exp"] = int(expiration.timestamp())
+        jws_string = jwt.encode(
+            payload=decoded_jwt["payload"], algorithm="HS256", key=""
         )
+        login_json["token"] = f"JWT {jws_string}"
+        login_route.return_value = Response(200, json=login_json)
 
         # Mock Device list GET.
         list_devices_route = respx_mock.get(